长龙山抽水蓄能电站地下厂房安全优质高效施工技术

Research on Safety and High Efficiency Construction Technology of Underground Powerhouse of Changlongshan Pumped-storage Power Station

长龙山抽水蓄能电站地下厂房洞室群布置紧凑,工期紧。通过采用特大跨度顶拱机械化开挖支护技术,进行关键施工工序优化,采用岩壁吊车梁精细开挖及岩壁吊车梁下拐点精细锁角保护,和个性化施工等技术措施,实现了大型洞室群安全优质高效施工。

Underground powerhouse of changlongshan pumped-storage power station,the arrangement of caverns is compact and the project deadline is tight. Through mechanized excavation support technology of super long span top arch,optimizing key construction procedures,use fine excavation of rock crane girder and fine lock angle protection under rock wall crane's lower turning point,individualized construction technical measures,realize safe,high quality and efficient construction of large caverns.